Tricky one isn't it Suzy? I had trouble justifying a 5mm XW and as much as I wanted to I knew it would not get much use. Other things to spend money on... Maybe you should start a thread along the lines of ....Are $300+ 5mm eyepieces really worth it when they sit in the eyepiece case for a long time, and see what comes out of that!
Having said that my 6.7 82 ES is fab can't really fault it, love to try it next to a Nagler one day just to reassure/ disappoint myself.
Matt
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